>Forget about burning to death or falling down pitch-black stairs and breaking your neck, it is apparently more important that electrical circuits are not energized or a valve is not opened on a saturday!
This is literally bogus. Nothing in Judaism prevents automated systems! That's the entire point of "sabbath mode" in elevators for example, and it's perfectly normal and usual to set electrical things to work on a timer on the sabbath.
Whoever told you this was utterly wrong and ignorant. There is no rabbi who would have agreed with this, WITHOUT the "you can ignore mitzvot to not die" corollary that others point out.
A fire alarm is a perfectly normal part of a kosher home. Maybe reconsider how much you trust the person who said this to you.
This is literally bogus. Nothing in Judaism prevents automated systems! That's the entire point of "sabbath mode" in elevators for example, and it's perfectly normal and usual to set electrical things to work on a timer on the sabbath.
Whoever told you this was utterly wrong and ignorant. There is no rabbi who would have agreed with this, WITHOUT the "you can ignore mitzvot to not die" corollary that others point out.
A fire alarm is a perfectly normal part of a kosher home. Maybe reconsider how much you trust the person who said this to you.